Home / 56,945,971.20-78,585,446.40-31,191,859.20

Finding the Fourth Proportional to 56,945,971.20, 78,585,446.40 and 31,191,859.20

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Solution

The fourth proportional to 56,945,971.20, 78,585,446.40 and 31,191,859.20 is: 43,044,769.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,945,971.20 : 78,585,446.40 = 31,191,859.20 : x
  2. Step 2: Convert to fraction form
    56,945,971.20/78,585,446.40 = 31,191,859.20/x
  3. Step 3: Cross multiply
    56,945,971.20x = 78,585,446.40 × 31,191,859.20
  4. Step 4: Simplify right side
    56,945,971.20x = 2,451,226,179,277,947
  5. Step 5: Solve for x
    x = 2,451,226,179,277,947/56,945,971.20
  6. Step 6: Final answer
    x = 43,044,769.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.